CN112439544B - Tailing recleaning type drum magnetic separator - Google Patents
Tailing recleaning type drum magnetic separator Download PDFInfo
- Publication number
- CN112439544B CN112439544B CN202011559732.6A CN202011559732A CN112439544B CN 112439544 B CN112439544 B CN 112439544B CN 202011559732 A CN202011559732 A CN 202011559732A CN 112439544 B CN112439544 B CN 112439544B
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- CN
- China
- Prior art keywords
- tank
- tailing
- pipe
- ore
- separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000006148 magnetic separator Substances 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 46
- 239000012141 concentrate Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 230000002441 reversible effect Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 claims 2
- 238000011084 recovery Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 230000002000 scavenging effect Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000007885 magnetic separation Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 2
- 239000006246 high-intensity magnetic separator Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/24—Details of magnetic or electrostatic separation for measuring or calculating of parameters, e.g. efficiency
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a tailing re-separation type barrel magnetic separator which comprises a feeding box, a separation tank, a separation barrel, a concentrate flushing water pipe, a concentrate tank, a concentrate pipe at the bottom of a separation tank body, a concentrate tank ore discharge pipe, a tailing tank, a tailing pipe at the bottom of a separation tank body, a tailing tank ore discharge pipe and a control box, and is characterized in that a separation plate, a liquid level meter and a stirrer are arranged in the tailing tank, the right side box lower part is equipped with two ore outlet, is equipped with two branch ore pipes in tailing case outside and ore outlet corresponding position, divides ore pipe one end to be connected with two ore outlet respectively, and the other end all is connected with the return main pipe, return main pipe's end is connected with the feed tube that reselects, and the feed tube that reselects is located the feed side of separation section of thick bamboo, and the feed tube that reselects is provided with a set of shower nozzle along separation section of thick bamboo length direction. The invention has the advantages that: the tailings in part of the tailings boxes are returned to the surface of the separation barrel through the return main pipe, so that the return tailings are subjected to closed-loop scavenging again, and the recovery rate and the yield of the magnetic concentrate are increased.
Description
Technical Field
The invention belongs to the technical field of magnetic separation of concentrating mills, and particularly relates to a tailing re-concentration type barrel magnetic separator.
Background
At present, most of iron ore types have a certain degree of magnetism, so magnetic separation is the most important ore separation method of iron ore, wherein strong magnetic minerals such as magnetite and titanomagnetite are separated by a multi-purpose drum type magnetic separator, and weak magnetic minerals such as hematite, limonite, specularite and the like are separated by a multi-purpose vertical ring high-intensity magnetic separator and a flat ring high-intensity magnetic separator.
Magnetite is the most widely utilized iron ore with larger current reserves, and is separated and recovered by a cylinder magnetic separator with smaller magnetic field strength due to stronger magnetism. The current barrel type magnetic separator for low-intensity magnetic separation is a permanent magnetic separation roller, the magnetism of the roller is gradually attenuated along with the prolonging of the service life, and the field intensity reduction on the surface of the separation roller caused by the magnetic attenuation can cause that part of fine particle iron concentrate with lower magnetism can not be adsorbed to be effectively recovered, so that the iron recovery rate of the iron concentrate and the yield of the iron concentrate can be reduced, and the economic benefit of a concentrating mill is reduced.
Disclosure of Invention
The invention aims to provide a tailings re-selection type cylinder magnetic separator which can adapt to the reduction of the surface field intensity of a permanent magnet cylinder magnetic separator and effectively improve the recovery rate and yield of iron concentrate.
The invention discloses a tailing re-selection type barrel magnetic separator which is realized by the following technical scheme:
The invention relates to a tailing recleaning type barrel magnetic separator which comprises a feeding box, a separation tank, a separation barrel, a concentrate flushing water pipe, a concentrate tank, a concentrate pipe at the bottom of a separation tank body, a concentrate tank ore discharge pipe, a tailing tank, a tailing pipe at the bottom of the separation tank body, a tailing tank ore discharge pipe and a control box, wherein the concentrate tank is communicated with a concentrate port of the separation tank, and the tailing tank is communicated with the concentrate pipe at the bottom of the separation tank; the automatic ore sorting device is characterized in that a liquid level meter is arranged above a left box body, a tailing outlet of a sorting tank is inserted into a right box body, stirrers are uniformly distributed in the right box body at equal intervals along the length direction, an electric regulating valve II is arranged on a tailing discharging pipe of the tailing box, two ore outlets are arranged at the lower part of the right box body along the length direction, two ore separating pipes are arranged at positions, corresponding to the two ore outlets, of the outer side of the tailing box along the length direction, one ends of the two ore separating pipes are respectively connected with the two ore outlets, the tail ends of the two ore separating pipes are connected with a return main pipe, the tail ends of the return main pipe are connected with a re-sorting feeding pipe, the re-sorting feeding pipe is arranged at the feeding side of the sorting barrel, a group of spray heads are uniformly arranged at intervals along the length direction of the sorting barrel, and are arranged on the return main pipe towards the surface of the sorting barrel, and an electric regulating valve I, a pressurizing pump and a concentration meter are arranged on the return main pipe, and the electric regulating valve I, the electric regulating valve II, the pressurizing pump and the concentration meter are electrically connected with a control box.
Preferably, the diameter of the ore separation pipe is 50mm-100mm.
Preferably, the reselection feeding pipes are provided with a group of spray heads at equal intervals of 100mm-200mm along the length direction of the sorting cylinder.
Preferably, the lower edge of the partition plate is 100mm-200mm away from the bottom of the tailing tank.
Preferably, the stirrers are two stirrers, and are arranged in mirror image with two ore outlet positions at the lower part of the right box body.
Preferably, the liquid level meter is provided with a low liquid level alarm and a high liquid level alarm, wherein the high liquid level is set to be 100mm away from the upper edge of the tailing tank, and the low liquid level alarm is set to be 100mm away from the upper part of the ore separating pipe; the motor of the electric regulating valve II is a reversible motor, and the alarm signal of the liquid level meter is interlocked with the reversible motor of the electric regulating valve II on the mine discharge pipe of the tailing tank.
The invention has the advantages that:
The tailing re-separation type magnetic separator provided by the invention returns and sprays part of tailings in the tailing tank to the surface of the separation cylinder through the booster pump of the return main pipe, so that the re-closed scavenging of the returned tailings is realized, and part of concentrate is separated again from the returned tailings, thereby increasing the recovery rate and yield of the magnetic concentrate and increasing the income of a separation plant.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a view in the A-A direction of fig. 1.
Fig. 3 is a schematic view of the structure of the reselection feeding pipe.
Detailed Description
Specific embodiments of the present invention are further described below with reference to the accompanying drawings.
As shown in fig. 1-3, the tailings recleaning drum type magnetic separator comprises a feeding tank 1, a separation tank 2, a separation drum 3, a concentrate tank 4, a concentrate pipe 6 at the bottom of the separation tank body, a concentrate tank ore discharge pipe 20, a tailings tank 5, a tailings pipe 7 at the bottom of the separation tank body, a tailings tank ore discharge pipe 17 and a control box, wherein the concentrate tank 4 is communicated with the concentrate pipe 6 of the separation tank, and the tailings tank 5 is communicated with the tailings pipe 7 at the bottom of the separation tank, and is characterized in that a through-length separation plate 15 is arranged in the length direction of the tailings tank 5 to divide the tailings tank 5 into a left tank body and a right tank body, the upper edge of the separation plate 15 is level with the upper edge of the tailings tank, and the lower edge of the separation plate is distant from the bottom of the tailings tank by mm-200 mm; the upper part of the left box body is provided with a liquid level meter 16, the tailing pipe 7 of the sorting tank 2 is inserted into the right box body, the right box body is internally provided with stirrers 19 at equal intervals along the length direction, and the uniform concentration of ore pulp in the right box body is realized by the arrangement of the stirrers, so that the condition that no tailings exist in the shunted ore pulp caused by the deposition of tailings at the bottom of the right box body is avoided, and the regulation effect of the shunted ore pulp on concentrate grade is ensured.
The invention is provided with an electric regulating valve II 18 on a tailing box ore discharging pipe 17, two ore outlets are arranged at the lower part of a right side box body along the length direction, and the two agitators 19 are arranged in a mirror image manner with the two ore outlets at the lower part of the right side box body; two ore separating pipes 8 are arranged at positions, corresponding to the two ore outlets, of the outer side of the tailing tank along the length direction, and the diameter of each ore separating pipe 8 is 50 mm-100 mm; one end of each ore separating pipe 8 is connected with two ore outlets respectively, the tail ends of each ore separating pipe 8 are connected with a return ore main pipe 9, the tail ends of the return ore main pipes 9 are connected with a reselection feeding pipe 13, the reselection feeding pipe 13 is arranged on the feeding side of the sorting cylinder 3, a group of spray heads 14 are arranged on the reselection feeding pipe at equal intervals of 100mm-200mm along the length direction of the sorting cylinder and face the surface of the sorting cylinder, an electric regulating valve I10, a pressurizing pump 11 and a concentration meter 12 are arranged on the return ore main pipes, and the electric regulating valve I10, the pressurizing pump 11 and the concentration meter 12 are electrically connected with a control box.
The tailing pipe is provided with the electric regulating valve II 18, and the electric regulating valve II 18 is also electrically connected with the control box.
The gravity feed pipe 13 for returning tailings is positioned above the liquid level of the separation tank, so that gravity separation of the returned tailings is realized before the separation cylinder 3 enters the separation tank 2, and interference of flowing slurry on gravity separation adsorption of the tailings is avoided; meanwhile, when the concentrated ore is fed together with new feeding, the adsorbed concentrated ore layer has a certain thickness, and the distance between the separation surface and the magnetic system inside the permanent magnetic roller is longer as the thickness of the adsorbed material increases, the field intensity is lower, so that the adsorption of the concentrated ore in the weak magnetic micro-fine particle return ore is hindered. The feeding mode realizes the interference-free preferential adsorption of qualified concentrate particles in the returned tailings on the surface of the separation roller, thereby guaranteeing the recovery of the fine-grained concentrate, increasing the recovery rate and yield of the magnetic concentrate and increasing the income of a separation plant.
The liquid level meter is provided with a low liquid level alarm and a high liquid level alarm, wherein the high liquid level is set to be 100mm away from the upper edge of the tailing tank, and the low liquid level alarm is set to be 100mm away from the upper part of the tailing separating pipe; the motor of the electric regulating valve II 18 is a reversible motor, and the alarm signal of the liquid level meter is interlocked with the reversible motor of the electric regulating valve II 18 on the mine discharge pipe of the tailing tank.
The low liquid level alarm of the tailing box is 100mm higher than that of the ore separating pipe, and the stable liquid level is controlled to realize the stability of the pressure of the feeding port of the ore separating pipe, so that the stable feeding of return ores is ensured.
The high liquid level alarm provided by the tailing box ensures that the tailings do not overflow from the box body, thereby avoiding pollution of the tailings to a factory building.
In the liquid level meter alarm, all motor driving of the electric regulating valve, the booster pump 11 and the concentration meter 12 are connected with a control box and automatically operate. The mode can detect and control in real time, does not need manual operation, and saves labor cost.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Claims (6)
1. The utility model provides a tailing recleaning cylinder magnet separator, includes feeding ore bin, separation tank, separation cylinder, concentrate wash water pipe, concentrate tank, the concentrate pipe of separation tank cell body bottom, concentrate tank ore discharge pipe, tailing tank, the tailing pipe of separation tank cell body bottom, tailing tank ore discharge pipe and control box, concentrate tank and separation tank's concentrate mouth intercommunication, tailing tank and separation tank bottom concentrate pipe intercommunication, characterized in that the tailing tank be provided with a division board of logical length along length direction, divide into left side box and right side box two parts with the tailing tank, the upper edge of division board and tailing tank upper edge parallel and level, the lower edge of division board is higher than the bottom of tailing tank; the automatic ore sorting device is characterized in that a liquid level meter is arranged above a left box body, a tailing outlet of a sorting tank is inserted into a right box body, stirrers are uniformly distributed in the right box body at equal intervals along the length direction, an electric regulating valve II is arranged on a tailing discharging pipe of the tailing box, two ore outlets are arranged at the lower part of the right box body along the length direction, two ore separating pipes are arranged at positions, corresponding to the two ore outlets, of the outer side of the tailing box along the length direction, one ends of the two ore separating pipes are respectively connected with the two ore outlets, the tail ends of the two ore separating pipes are connected with a return main pipe, the tail ends of the return main pipe are connected with a re-sorting feeding pipe, the re-sorting feeding pipe is arranged at the feeding side of the sorting barrel, a group of spray heads are uniformly arranged at intervals along the length direction of the sorting barrel, and are arranged on the return main pipe towards the surface of the sorting barrel, and an electric regulating valve I, a pressurizing pump and a concentration meter are arranged on the return main pipe, and the electric regulating valve I, the electric regulating valve II, the pressurizing pump and the concentration meter are electrically connected with a control box.
2. The tailings reselecting drum magnetic separator according to claim 1, wherein said separating tube has a diameter of 50mm to 100mm.
3. The tailings recleaning drum separator of claim 1 wherein the separator comprises
And a group of spray heads are arranged on the selecting and feeding pipe at equal intervals of 100mm-200mm along the length direction of the sorting cylinder.
4. The tailings recleaning drum magnetic separator of claim 1 wherein the lower edge of the separator plate is 100mm to 200mm from the bottom of the tailings tank.
5. The tailings re-separation type drum magnetic separator according to claim 1, wherein the number of the stirrers is two, and the stirrers are arranged in a mirror image manner with the positions of the two ore outlets at the lower part of the right side box body.
6. The tailings re-separation type cylindrical magnetic separator according to claim 1, wherein the liquid level gauge is provided with a low liquid level alarm and a high liquid level alarm, the high liquid level is set to be 100mm away from the upper edge of the tailings tank, and the low liquid level alarm is set to be 100mm away from the upper part of the tailings separating pipe; the motor of the electric regulating valve II is a reversible motor, and the alarm signal of the liquid level meter is interlocked with the reversible motor of the electric regulating valve II on the mine discharge pipe of the tailing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559732.6A CN112439544B (en) | 2020-12-25 | 2020-12-25 | Tailing recleaning type drum magnetic separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559732.6A CN112439544B (en) | 2020-12-25 | 2020-12-25 | Tailing recleaning type drum magnetic separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112439544A CN112439544A (en) | 2021-03-05 |
| CN112439544B true CN112439544B (en) | 2024-08-30 |
Family
ID=74739747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011559732.6A Active CN112439544B (en) | 2020-12-25 | 2020-12-25 | Tailing recleaning type drum magnetic separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112439544B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214288779U (en) * | 2020-12-25 | 2021-09-28 | 中冶北方（大连）工程技术有限公司 | Tailing recleaning type cylinder magnetic separator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203264854U (en) * | 2013-04-25 | 2013-11-06 | 北矿机电科技有限责任公司 | Wet magnetic separator tank body |
| CN107694745A (en) * | 2017-11-15 | 2018-02-16 | 中冶北方（大连）工程技术有限公司 | A kind of elutriation magnetic separator tailing treatment technology |
| CN108296016A (en) * | 2018-01-17 | 2018-07-20 | 武汉理工大学 | A kind of single layer groove body formula magnetic separator |
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2020
- 2020-12-25 CN CN202011559732.6A patent/CN112439544B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214288779U (en) * | 2020-12-25 | 2021-09-28 | 中冶北方（大连）工程技术有限公司 | Tailing recleaning type cylinder magnetic separator |
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| CN112439544A (en) | 2021-03-05 |
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